Moving arc contact section cutting tool clamp

Abstract

The utility model relates to the technical field of machining, in particular to a movable arc contact section cutting tool clamp, which aims to solve the problems of poor machining precision and time and labor waste caused by frequent disassembly and assembly of the existing clamp. The clamp comprises a main body, a fixed plate and a clamping ring, the main body is inserted into the side surface of the fixed plate; the moving arc contact is sleeved at one end far away from the main body; one end of the moving arc contact close to the main body is provided with a step. The clamping ring is sleeved with the main body; the clamping ring is provided with a concave surface matched with the step; after the main body, the moving arc contact and the snap ring are assembled in sequence, the concave surface abuts against the step. And the clamping ring is detachably connected with the main body. According to the device, only the moving arc contact needs to be sleeved at one end of the main body, and the clamping ring is used for locking the moving arc contact, so that fixation can be completed. The ball bearing is arranged between the main body and the fixed plate, so that the main body can rotate along the axis of the main body, and the processing position of the moving arc contact can be easily adjusted without taking down the main body.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a tooling fixture for cutting off the flaps of a moving arc contact. Background Technology

[0002] The moving arc contact is an important component in switchgear, especially in high-voltage circuit breakers. Its main responsibility is to withstand and control the electric arc during circuit breaking, ensuring that the arc is extinguished quickly, thereby protecting electrical equipment from damage and guaranteeing the safety of operators.

[0003] When a circuit breaker trips, the moving and stationary contacts separate. If current flows through the circuit at this time, an electric arc will be generated between the contacts. To effectively manage this process, the moving contact is usually designed to move quickly, increasing the length of the arc and accelerating its cooling and eventual extinguishing.

[0004] The design requires six equally sized slots, arranged in a regular hexagonal pattern, to be machined on one end of the moving arc contact. However, traditional fixtures have significant limitations in actual machining. Conventional fixtures, after locking the moving arc contact, can only stably machine one slot. After completing that slot, the locking nut must be unlocked, the angle manually adjusted, and then re-locked before machining the next slot. This process is highly repetitive and cumbersome, consuming considerable manpower and time. Furthermore, repeated clamping can lead to accumulated positioning errors, affecting machining accuracy and consistency. Especially in mass production environments, this inefficient machining method becomes a major factor restricting production cycle time and product quality. Therefore, a highly efficient and stable fixture design is urgently needed to achieve continuous machining of multiple slots with a single clamping of the moving arc contact, thereby improving machining efficiency, reducing manual intervention, and meeting the dual demands of modern manufacturing for high precision and high efficiency. Utility Model Content

[0005] To alleviate the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] This utility model provides a moving arc contact cutting tooling fixture, including a main body, a fixing plate and a retaining ring;

[0007] The main body is inserted into the side of the fixing plate;

[0008] The moving arc contact is sleeved at the end furthest from the main body;

[0009] A step is provided at the end of the moving arc contact near the main body;

[0010] The retaining ring is sleeved with the main body;

[0011] The retaining ring has a concave surface that mates with the step;

[0012] After the main body, moving arc contact and retaining ring are assembled in sequence, the concave surface and the step abut against each other.

[0013] The retaining ring is detachably connected to the main body.

[0014] Furthermore,

[0015] A ball bearing is installed between the main body and the fixed plate;

[0016] The main body can rotate along its own axis.

[0017] Furthermore,

[0018] The end of the main body away from the moving arc contact has a positioning body;

[0019] The positioning body is a regular hexagon.

[0020] Furthermore,

[0021] It also includes retaining rings;

[0022] The retaining ring is sleeved on the end of the body away from the moving arc contact and is threadedly connected to the body.

[0023] Furthermore,

[0024] After the retaining ring is assembled, the surface of the retaining ring closest to the moving arc contact abuts against the surface of the fixed plate opposite to the moving arc contact, and a sliding contact fit is formed between the two.

[0025] Furthermore,

[0026] It also includes a fixing block;

[0027] The fixing block is located on the side of the fixing plate away from the moving arc contact and is connected to the fixing plate by bolts;

[0028] The fixing plate is equipped with positioning posts;

[0029] The positioning post is inserted into the fixing block;

[0030] The fixing block has a groove extending downward from the top.

[0031] Furthermore,

[0032] After the fixing block and the fixing plate are assembled, the positioning body is located in the groove, and there is a gap of the same size between the two sides of the positioning body and the groove.

[0033] Furthermore,

[0034] It also includes positioning blocks;

[0035] The positioning block includes a horizontal plate, a first vertical plate, and a second vertical plate;

[0036] In the assembled state, the first vertical plate and the second vertical plate respectively engage with the gaps on both sides of the positioning body;

[0037] The lower part of the horizontal plate abuts against the upper part of the fixed plate.

[0038] Furthermore,

[0039] The retaining ring is connected to the main body by bolts.

[0040] The beneficial effects of this utility model are analyzed as follows:

[0041] This solution includes a main body, a fixing plate, and a retaining ring; the main body is inserted into the side of the fixing plate; the moving arc contact is sleeved on the end away from the main body; a step is provided on the end of the moving arc contact near the main body; the retaining ring is sleeved on the main body; the retaining ring is provided with a concave surface that mates with the step; after the main body, the moving arc contact, and the retaining ring are assembled in sequence, the concave surface abuts against the step; the retaining ring and the main body are detachably connected.

[0042] This device only requires attaching the moving arc contact to one end of the main body and locking it with a retaining ring to complete the fixation. Furthermore, a ball bearing between the main body and the fixing plate allows the main body to rotate along its own axis, enabling easy adjustment of the moving arc contact's machining position without removing the main body, reducing errors caused by disassembly and assembly. The hexagonal design of the positioning body matches the distribution of the grooves machined by the moving arc contact, ensuring that six equally divided grooves can be machined continuously without moving the arc contact, greatly improving machining efficiency and accuracy. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 A side view of the moving arc contact cutting tooling fixture provided for the embodiment of this utility model;

[0045] Figure 2 A cross-sectional schematic diagram of the moving arc contact cutting tooling fixture provided for an embodiment of this utility model;

[0046] Figure 3 This is a schematic diagram of the positioning block.

[0047] Figure 4 This is a schematic diagram of the structure of a moving arc contact.

[0048] Figure 5 A structural diagram of the main body;

[0049] Figure 6 This is a schematic diagram of the clasp structure;

[0050] Figure 7 This is a schematic diagram of the fixed block.

[0051] icon:

[0052] 100 - Main body; 110 - Positioning element;

[0053] 200 - Fixing plate; 210 - Positioning post;

[0054] 300 - Snap ring; 310 - Concave surface;

[0055] 400 - Moving arc contact; 410 - Step;

[0056] 500-ball bearing;

[0057] 600-Retaining ring;

[0058] 700 - Fixing block; 710 - Groove;

[0059] 800 - Positioning block; 810 - Horizontal plate; 820 - First vertical plate; 830 - Second vertical plate. Detailed Implementation

[0060] Conventional fixtures, after locking the moving arc contact, can only stably machine one groove. After completing the machining of that groove, the locking nut on the workpiece must be unlocked, the angle manually adjusted, and then re-locked before machining the next groove can begin. This process is highly repetitive and cumbersome, not only consuming a lot of manpower and time, but also easily leading to the accumulation of positioning errors due to multiple clamping, thus affecting machining accuracy and consistency.

[0061] In view of this, such as Figures 1 to 7 As shown, this solution provides a moving arc contact cutting tooling fixture to alleviate the above problems.

[0062] This device includes a main body 100, a fixing plate 200, and a retaining ring 300;

[0063] The main body 100 is inserted into the side of the fixing plate 200;

[0064] The moving arc contact 400 is sleeved at the end furthest from the main body 100;

[0065] A step 410 is provided at one end of the moving arc contact 400 near the main body 100;

[0066] The retaining ring 300 is sleeved with the main body 100;

[0067] The retaining ring 300 is provided with a concave surface 310 that mates with the step 410;

[0068] After the main body 100, the moving arc contact 400 and the retaining ring 300 are assembled in sequence, the concave surface 310 and the step 410 abut against each other.

[0069] The retaining ring 300 is detachably connected to the main body 100;

[0070] A ball bearing 500 is provided between the main body 100 and the fixing plate 200;

[0071] The main body 100 is capable of rotating along its own axis;

[0072] The end of the main body 100 away from the moving arc contact 400 has a positioning body 110;

[0073] Positioning body 110 is a regular hexagon;

[0074] The retaining ring 300 is connected to the main body 100 by bolts.

[0075] Specifically, after the moving arc contact 400 is installed at the corresponding position on the main body 100, the retaining ring 300 is inserted and locked to fix the moving arc contact 300. After locking the main body 100, the moving arc contact 400 can be processed. During processing, the positioning body 110 is a regular hexagon, and its distribution relationship with the grooves processed on the moving arc contact 400 is consistent. Therefore, after fixing the positioning body 110, the first groove can be processed at any position on the moving arc contact 400. Then, after contacting the fixed state of the positioning body 110, it is rotated 60 degrees and fixed, and processing can continue until all six grooves are completed. Furthermore, because a ball bearing 500 is set between the main body 100 and the fixing plate 200, after processing one groove, it is not necessary to remove the main body 100. The processing position of the moving arc contact 400 can be adjusted by rotating it along its own axis, reducing the error caused by disassembly and assembly.

[0076] This solution also includes a retaining ring 600;

[0077] The retaining ring 600 is sleeved on the end of the body 100 away from the moving arc contact 400 and is threadedly connected to the body 100;

[0078] After the retaining ring 600 is assembled, the surface of the retaining ring 600 near the moving arc contact 400 abuts against the surface of the fixing plate 200 away from the moving arc contact 400, and a sliding contact fit is formed between the two.

[0079] Specifically, after assembly, the retaining ring 600 abuts against the fixed plate 200, preventing the moving arc contact 400 from moving along the axial direction during processing, thus ensuring the consistency of its processing dimensions. Furthermore, since it has a sliding fit with the fixed plate 200, it is easy to adjust the processing position of the moving arc contact 400.

[0080] This solution also includes a fixing block 700 and a positioning block 800;

[0081] The fixing block 700 is located on the side of the fixing plate 200 away from the moving arc contact 400, and is connected to the fixing plate 200 by bolts;

[0082] The fixing plate 200 is provided with positioning posts 210;

[0083] The positioning post 210 is inserted into the fixing block 700;

[0084] The fixing block 700 has a groove 710 extending downward from the top;

[0085] After the fixing block 700 and the fixing plate 200 are assembled, the positioning body 110 is located in the groove 710, and there is a gap of the same size between the two sides of the positioning body 110 and the groove 710.

[0086] The positioning block 800 includes a horizontal plate 810, a first vertical plate 820, and a second vertical plate 830;

[0087] In the assembled state, the first vertical plate 820 and the second vertical plate 830 respectively engage with the gaps on both sides of the positioning body 110;

[0088] The lower part of the horizontal plate 810 abuts against the upper part of the fixed plate 200.

[0089] Specifically, a positioning post 210 is provided on the side of the fixed plate 200 away from the moving arc contact 400, and a positioning hole is provided on the fixed block 700 to cooperate with the positioning post 210, so as to reduce the relative error between the moving arc contact 400 and the fixed block 700 after assembly and ensure that the gap between the two sides of the moving arc contact 400 and the fixed block 700 is consistent. Before processing, the positioning block 800 will be inserted from directly above the fixed block 700, so that the first vertical plate 820 and the second vertical plate 830 are locked into the two gaps between the two sides of the moving arc contact 400 and the fixed block 700, restricting the rotation of the main body 100.

[0090] This solution has at least the following beneficial effects:

[0091] First, the combined design of the main body 100, the fixing plate 200, and the retaining ring 300 simplifies the installation and fixing of the moving arc contact 400. Simply attach the moving arc contact 400 to one end of the main body 100 and lock it in place using the retaining ring 300. Furthermore, a ball bearing 500 is installed between the main body 100 and the fixing plate 200, allowing the main body 100 to rotate along its own axis. This enables easy adjustment of the machining position of the moving arc contact 400 without removing the main body 100, reducing errors caused by disassembly and assembly. The hexagonal design of the positioning body 110 matches the distribution of the grooves machined by the moving arc contact 400, ensuring that six equally divided grooves can be machined continuously without moving the arc contact, greatly improving machining efficiency and accuracy.

[0092] Furthermore, the addition of the retaining ring 600 further ensures the stability of the moving arc contact during processing, preventing it from moving axially and thus ensuring the consistency of the processed dimensions. The introduction of the fixing block 700 and the positioning block 800 further reduces the relative error after assembly, ensuring consistent gaps between the two sides of the moving arc contact 400 and the fixing block 700, limiting unnecessary rotation of the main body 100, ensuring the stability and reliability of the processing, significantly reducing labor costs and time consumption, while greatly improving processing accuracy and product consistency.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tooling fixture for cutting segments of a moving arc contact, characterized in that: Includes a main body (100), a fixing plate (200), and a retaining ring (300); The main body (100) is inserted into the side of the fixing plate (200); The moving arc contact (400) is sleeved at the end away from the main body (100); The moving arc contact (400) has a step (410) at one end near the body (100). The retaining ring (300) is sleeved with the main body (100); The retaining ring (300) is provided with a concave surface (310) that cooperates with the step (410). After the main body (100), the moving arc contact (400) and the retaining ring (300) are assembled in sequence, the concave surface (310) and the step (410) abut against each other; The retaining ring (300) is detachably connected to the body (100).

2. The moving arc contact cutting fixture according to claim 1, characterized in that: A ball bearing (500) is provided between the main body (100) and the fixing plate (200). The main body (100) is capable of rotating along its own axis.

3. The moving arc contact cutting fixture according to claim 2, characterized in that: The body (100) has a positioning body (110) at the end away from the moving arc contact (400); The positioning body (110) is a regular hexagon.

4. The moving arc contact cutting tooling fixture according to claim 3, characterized in that: It also includes a retaining ring (600); The retaining ring (600) is sleeved on the end of the body (100) away from the moving arc contact (400) and is threadedly connected to the body (100).

5. The moving arc contact cutting fixture according to claim 4, characterized in that: After the retaining ring (600) is assembled, the side surface near the moving arc contact (400) abuts against the side surface of the fixing plate (200) away from the moving arc contact (400), and a sliding contact fit is formed between the two.

6. The moving arc contact cutting fixture according to claim 5, characterized in that: It also includes a fixing block (700); The fixing block (700) is disposed on the side of the fixing plate (200) opposite to the moving arc contact (400) and is connected to the fixing plate (200) by bolts; The fixing plate (200) is provided with positioning posts (210); The positioning post (210) is inserted into the fixing block (700); The fixing block (700) has a groove (710) extending downward from the top.

7. The moving arc contact cutting tooling fixture according to claim 6, characterized in that: After the fixing block (700) and the fixing plate (200) are assembled, the positioning body (110) is located in the groove (710), and there is a gap of the same size between the two sides of the positioning body (110) and the groove (710).

8. The moving arc contact cutting tooling fixture according to claim 7, characterized in that: It also includes the positioning block (800); The positioning block (800) includes a horizontal plate (810), a first vertical plate (820), and a second vertical plate (830); In the assembled state, the first vertical plate (820) and the second vertical plate (830) respectively engage with the gaps on both sides of the positioning body (110); The lower part of the horizontal plate (810) abuts against the upper part of the fixed plate (200).

9. The moving arc contact cutting fixture according to claim 8, characterized in that: The retaining ring (300) is connected to the body (100) by bolts.

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